1,538,246

2 × 769123

Starting at 1,538,246, the Collatz iteration reaches 1 after 75 steps. The first transition is 769123; the starting value is even with 4 positive divisors.

Prime Factor Structure

Factorization String 2 × 769123

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,307,372

Proper Divisor Sum 769,126

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #1538233 ← → #1538261

Radix Representation

Decimal	1538246
Binary	101110111100011000110 (21 bits)
Octal	0o5674306
Hexadecimal	0x1778C6

Divisor Catalog (4)

1 2 769,123 1,538,246

Collatz Trajectory (75 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

1,538,246 769,123 2,307,370 1,153,685 3,461,056 1,730,528 865,264 432,632 216,316 108,158 54,079 162,238 81,119 243,358 121,679 365,038 182,519 547,558 273,779 821,338 410,669 1,232,008 616,004 308,002 154,001 462,004 231,002 115,501 346,504 173,252 86,626 43,313 129,940 64,970 32,485 97,456 48,728 24,364 12,182 6,091 18,274 9,137 27,412 13,706 6,853 20,560 10,280 5,140 2,570 1,285 3,856 1,928 964 482 241 724 362 181 544 272

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